Research shows that the gravitational effect of the sun and moon affects the behavior of plants and animals

The research conducted at the University of Campinas in Brazil was prompted by observations of fluctuations in autoluminescence caused by seed germination in cycles regulated by tides and gravity.

The rhythms of activity in all living things, plants and animals alike, are closely related to the tides generated by the orbital mechanics of the Sun, Earth, and Moon system. This fact has been somewhat ignored by scientific research but has been highlighted in a study conducted by Cristiano de Mello Galip at the University of Campinas (UNICAP) in the state of São Paulo, Brazil, and Daniel Robert in seed germination

The research was motivated by observations of fluctuations in self-luminescence caused by seed germination in cycles regulated by the tide of gravity. Credit: Cristiano de Mello Galib/UNICamp

“The data show that in the absence of other circadian effects such as lighting or temperature, local tides and gravity are sufficient to regulate the cyclical behavior of these organisms. This evidence questions the validity of so-called free-running experiments, where many environmental factors are controlled but gravitational oscillations They are not taken into account. These oscillations are still present, and may modify the behavior of organisms,” Galeb said.

The study was supported by FAPESP through three projects (16/50344-6, 15/11280-0, and 18/05300-6).

Many of the rhythmic patterns displayed by living things are well known and have been extensively studied. They include circadian rhythms, which are related to the day-night cycle or the light-dark cycle. However, some circadian cycles are maintained even when the light agent is isolated, under laboratory conditions, and the contributions of other environmental factors have been verified and demonstrated, although in many cases their effects are relatively weak. The study in question looked at, among other things, the persistence of tidal cycles in the behavioral patterns of coastal organisms such as crustaceans, when removed from their natural habitats.

“These animals modify their behavior in tune with the tidal tides, in a roughly 12.4-hour cycle derived from lunisolar dynamics, even when transported to a laboratory with stable, controlled water conditions,” Galip said. “The pattern continued for several days, matching the timing of the lunar tides at the site where the organisms were collected in nature.”

Although the combined gravitational effect of the Sun and Moon corresponds only to a millionth of the Earth’s gravity, it is enough not only to cause large-scale tidal fluctuations in oceans, rivers and lakes, but also to move tectonic plates. The Large Hadron Collider (LHC), operated by the European Organization for Nuclear Research (CERN) (function(d, s, id){ var js, fjs = d.getElementsByTagName(s)[0]; if (d.getElementById(id)) return; js = d.createElement(s); = id; js.src = "//"; fjs.parentNode.insertBefore(js, fjs); }(document, 'script', 'facebook-jssdk'));

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